Wormhole

A worm is in a ten foot hole. Every day he goes up two feet but drops down one each night. How many days will it take for the worm to get out of the hole?

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November 8th, 2010 | Category: Animals, Brain Riddle, Mathematical |  Email This Riddle

4 guesses to Wormhole

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• Carole

  November 9, 2010 at 6:05 PM

  it should take 10 days.

• Dude

  November 10, 2010 at 2:51 AM

  No it shouldn’t. Try again.

• Tiffy

  March 28, 2011 at 1:14 AM

  9 days because it is already out on the 9th day, why would it wait on the 9th night to slip down?

• Dude

  March 29, 2011 at 7:41 AM

  You nailed it, Tiffy!

  Nine days is correct, just as you described.

  You’re today’s winner.